Maybe Gloria would think of a convincing excuse.

If you're so all-fired eager to go busting into His house uninvited you'd better stop bawling and start thinking up a convincing excuse.

He cross-examines the Minister over his being there but Hacker is unable to give a convincing excuse.

Unable to come up with a convincing excuse, he cursed and started down Baker's Row.

Try as he might, however, he could find neither a convenient nor convincing excuse to go to Hrolfsey.

He was stalled with convincing excuses but could never quite find out what he wanted to know.

Alas, there were none willing to take the consequences and Haider gives various not very convincing excuses for this.

No creation has bestowed on the future a more convincing excuse for the sublime arrogance of the Romantic ego.

On the other hand, he'd been looking for a convincing excuse to stick as close to her as a bullsnake on a mouse's trail.

Give her a fancy and convincing but meaningless excuse.